alone are effective for attachment-disordered children and that traditional treatments are ineffective or harmful. The APSAC Task Force expressed concern over claims by therapies to be "evidence-based", or the only evidence-based therapy, when the Task Force found no credible evidence base for any such therapy so advertised. Nor did it accept more recent claims to evidence base in its November 2006 Reply. Two approaches on which published studies have been undertaken are holding therapy and dyadic developmental psychotherapy. Each of these non-randomized studies concluded that the treatment method studied was effective. Both the APSAC Task Force and Prior and Glaser cite and criticize the one published study on holding therapy undertaken by Myeroff et al., which "purports to be an evaluation of holding therapy". This study covers the "across the lap" approach, described as "not restraint" by Howe and Fearnley but "being held whilst unable to gain release." Prior and Glaser state that although the Myeroff study claims it is based on attachment theory, the theoretical basis for the treatment is in fact Zaslow. Dyadic developmental psychotherapy was developed by psychologist Daniel Hughes, described by the Task Force as a "leading attachment therapist". Hughes' website gave a list of attachment therapy techniques, repeated by the APSAC Task Force from an earlier website, which he stated do not or should not form part of dyadic developmental psychotherapy, which the Task Force took as a description of attachment therapy techniques. Two studies on dyadic developmental psychotherapy have been published by Becker-Weidman, the second being a four-year follow up of the first. Prior and Glaser state Hughes' therapy reads as good therapy for abused and neglected children, though with "little application of attachment theory", but the advocacy group ACT and the Task Force place Hughes within the attachment therapy paradigm. In 2004, Saunders, Berliner and Hanson developed a system of categories for social work interventions which has proved somewhat controversial. In their first analysis, holding therapy was placed in Category 6 as a "Concerning treatment". In 2006 Craven and Lee classified 18 studies in a literature review under the Saunders, Berliner & Hanson system. They considered both dyadic developmental psychotherapy and holding therapy. They placed both in Category 3 as "Supported and acceptable". This categorization by Craven and Lee has been criticized as unduly favorable, a point to which Craven and Lee responded by arguments in support of holding therapy. Both Myeroff et